1/2 Square Nuts
Square Nuts are just four-sided nuts, but compared to standard hex nuts, square nuts have a greater surface in contact with the part being fastened, and therefore provide greater resistance to loosening. Square nuts are typically mated with square-headed bolts.
161 results, (click on any line for more information)
Buy Square Nuts from one of our FCH Network Members | ||||||||
---|---|---|---|---|---|---|---|---|
Supplier | Loc | Type | Material | Finish | Size | Description | Qty | |
Jackson | MS | Square Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2-13 | nc 18-8 304 square nut | 22 |
|
American | NY | Square Nut | Steel | Plain | 1/2-13 | square nut | 10 |
|
MAINSOURC | NH | Square Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2-13 | 1/2-13 square nut 18-8 ss | 10 |
|
American | NY | Square Nut | Steel | Zinc/Clear | 1/2-13 | square nut zp | 650 |
|
Ababa | CA | Square Nut | Steel | Plain | 1/2-13 | 1/2-13 sq nut stl pln b18.2.2 | 726 |
|
Ababa | CA | Square Nut | Steel | Plain | 1/2-13 | 1/2-13 sq nut stl pln b18.2.2 | 100 |
|
Ababa | CA | Square Nut | Steel | Zinc/Clear | 1/2-13 | 1/2-13 sq nut stl znc b18.2.2 | 200 |
|
YANKEE | NH | Square Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2-13 | 1/2-13 square nut (13/16 wd x 7/16 ht) 18-8 stainless steel | 24 |
|
Weaver | WA | Square Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2-13 | 1/2-13 square nut 18-8 ss | 106 |
|
Weaver | WA | Square Nut | Steel | Zinc/Clear | 1/2-13 | 1/2-13 square nut zinc | 1140 |
|
JET FITTING | CA | Square Nut | Grade 2 | Zinc/Clear | 1/2-13 | nut square 1/2-13 grade 2 steel zinc plated b18.2.2 | 200 |
|
Express | CA | Square Nut | Steel | Zinc/Clear | 1/2-13 | 1/2-13 square nuts zinc | 250 |
|
American | NY | Square Nut | Steel | Cadmium/Yellow | 1/2-13 | square nut nylon patch cad | 140 |
|
American | NY | Square Nut | Steel | Galvanized | 1/2-13 | square nut hot dipped | 500 |
|
B & K FAST | PA | Square Nut | Steel | Plain | 1/2-13 | 1/2-13 heavy square nuts plain b18.2.2 | 131 |
|
B & K FAST | PA | Square Nut | Steel | Plain | 1/2-13 | 1/2-13 square nuts plain b18.2.2 | 1583 |
|
B & K FAST | PA | Square Nut | Steel | Zinc/Clear | 1/2-13 | 1/2-13 square nuts zinc b18.2.2 | 30 |
|
TSF | TX | Square Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2-13 x 13/16 x 7/16 | square nut ss 1/2-13x13/16x7/16 | 75 |
|
TSF | TX | Square Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2-13 x 13/16 x 7/16 | square nut ss 1/2-13x13/16x7/16 | 75 |
|
QFC | TX | Square Nut | Steel | Plain | 1/2-13 | 1/2-13 square nut plain b18.2.2 | 40 |
|
QFC | TX | Square Nut | Steel | Plain | 1/2-13 | 1/2-13 square nut plain b18.2.2 | 3000 |
|
QFC | TX | Square Nut | Grade 5 | Plain | 1/2-13 | 1/2-13 hvy square nut grade 5 plain b18.2.2 | 36 |
|
QFC | TX | Square Nut | Steel | Plain | 1/2-13 | 1/2-13 sq nut overtapped .021 plain b18.2.2 | 490 |
|
QFC | TX | Square Nut | Steel | Galvanized | 1/2-13 | 1/2-13 square nut galvanized b18.2.2 | 746 |
|
QFC | TX | Square Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2-13 | 1/2-13 square nut 18-8 s/s b18.2.2 | 5935 |
|
QFC | TX | Square Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2-13 | 1/2-13 square nut 18-8 s/s b18.2.2 | 386 |
|
QFC | TX | Square Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2-13 | 1/2-13 square nut 18-8 s/s domestic b18.2.2 | 230 |
|
QFC | TX | Square Nut | Steel | Plain | 1/2-13 | 1/2-13 square nut tapped oversize plain b18.2.2 | 1150 |
|
QFC | TX | Square Nut | Steel | Plain | 1/2-13 | 1/2-13 square nut tapped oversize plain finish domestic b18.2.2 | 21 |
|
QFC | TX | Square Nut | Steel | Plain | 1/2-13 | 1/2-13 square nut tapped oversize plain finish domestic b18.2.2 | 2 |
|
QFC | TX | Square Nut | Steel | Plain | 1/2-13 | 1/2-13 square nut tapped oversize plain finish domestic b18.2.2 | 272 |
|
QFC | TX | Square Nut | Steel | Galvanized | 1/2-13 x .018 | 1/2-13 square nut hdg .018 o/s 100% domestic b18.2.2 | 12440 |
|
QFC | TX | Square Nut | Steel | Galvanized | 1/2-13 x .018 | 1/2-13 square nut hdg .018 o/s 100% domestic b18.2.2 | 343 |
|
QFC | TX | Square Nut | Steel | Galvanized | 1/2-13 x .018 | 1/2-13 square nut hdg .018 o/s 100% domestic b18.2.2 | 8728 |
|
QFC | TX | Square Nut | Steel | Galvanized | 1/2-13 x .018 | 1/2-13 square nut hdg .018 o/s 100% domestic b18.2.2 | 116165 |
|
QFC | TX | Square Nut | Steel | Galvanized | 1/2-13 x .018 | 1/2-13 square nut hdg .018 o/s 100% domestic b18.2.2 | 70000 |
|
QFC | TX | Square Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2-13 x 13/16 | 1/2-13x13/16(.81)af square nut 18-8 100% domestic b18.2.2 | 1187 |
|
QFC | TX | Square Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2-13 x 13/16 | 1/2-13x13/16(.81)af square nut 18-8 100% domestic b18.2.2 | 595 |
|
QFC | TX | Square Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2-13 x 13/16 | 1/2-13x13/16(.81)af square nut 18-8 100% domestic b18.2.2 | 258 |
|
METRO IND | OH | Square Nut | Steel | Zinc/Clear | 1/2-13 | square nut uss | 490 |
|
TSF | TX | Square Nut | Steel | Zinc/Clear | 1/2-13 | square nut zinc 1/2-13 | 1500 |
|
ACCURATE | IL | Square Nut | Steel | Zinc/Clear | 1/2-13 | square nut regular | 1447 |
|
Hewes | NY | Square Nut | Steel | Plain | 1/2-13 | sqr nut finish | 638 |
|
MESAFAST | CA | Square Nut | Steel | Zinc/Clear | 1/2-13 | square nut | 106.0 |
|
HBBOLT | CA | Square Nut | Steel | Plain | 1/2-13 | square nut w/convex cut top | 1 |
|
Endries | WI | Square Nut | Steel | Zinc/Clear | 1/2-13 | 1/2-13 square nut zinc | 3450 |
|
Wurth Ada | MN | Square Nut | Grade 2 | Zinc/Clear | 1/2-13 | nut sq grade 2 (zn) 1/2-13 | 24,751 |
|
GLF | OH | Square Nut | Steel | Plain | 1/2-13 | 1/2-13 hvy square nut stl pln b18.2.2 () () | 210 |
|
GLF | OH | Square Nut | Steel | Galvanized | 1/2-13 | 1/2-13 square nut stl hdg b18.2.2 () () | 2755 |
|
THRDFAST | FL | Square Nut | Steel | Zinc/Clear | 1/2-13 | square nut b18.2.2 | 39 |
|
CIF | IL | Square Nut | Steel | Plain | 1/2-13 x 1.25 | 1/2-13 square nutx1.25 across flats and 0.17 thick steel plain (514) (514) (502) () | 502 |
|
CIF | IL | Square Nut | Steel | Galvanized | 1/2-13 x 1.25 | 1/2-13 square nutx1.25 across flats and 0.31 thick steel mechanical galvinized (22817) (22817) (22819) () | 22819 |
|
SIS | AZ | Square Nut | Steel | Galvanized | 1/2-13 | 1/2-13 square nut steel hot dip galv | 9516 |
|
SIS | AZ | Square Nut | Steel | Plain | 1/2-13 | 1/2-13 square nut steel plain | 300 |
|
American | NY | Square Nut | Steel | Zinc/Clear | 1/2-13 | square nut zp | 200 |
|
THRDFAST | FL | Square Nut | Steel | Zinc/Clear | 1/2-13 | square nut b18.2.2 | 71 |
|
THRDFAST | FL | Square Nut | Steel | Galvanized | 1/2-13 | square nut hdg b18.2.2 | 59 |
|
NAPPCO | TX | Square Nut | Steel | Zinc/Clear | 1/2-13 | square nut steel zinc 1/2-13 (160-NUTS (STANDARD)) (160-NUTS (STANDARD)) (160-NUTS (STANDARD)) (160-NUTS (STANDARD)) (160-NUTS (STANDARD)) (160-NUTS (STANDARD)) (160-NUTS (STANDARD)) (160-NUTS (STANDARD)) (160-NUTS (STANDARD)) (160-NUTS (STANDARD)) (160-NUTS (STANDARD)) (160-NUTS (STANDARD)) (160-NUTS (STANDARD)) (160-NUTS (STANDARD)) (160-NUTS (STANDARD)) (160-NUTS (STANDARD)) (160-NUTS (STANDARD)) (160-NUTS (STANDARD)) | 502 |
|
THRDFAST | TN | Square Nut | Steel | Zinc/Clear | 1/2-13 | square nut b18.2.2 | 964 |
|
THRDFAST | TN | Square Nut | Steel | Plain | 1/2-13 | square nut b18.2.2 | 50 |
|
IRF | NJ | Square Nut | Steel | Plain | 1/2-13 | reg square nut stl | 5177 |
|
IRF | NJ | Square Nut | Steel | Plain | 1/2-13 | reg square nut stl | 5177 |
|
IRF | NJ | Square Nut | Steel | Plain | 1/2-13 | reg square nut stl | 5177 |
|
IRF | NJ | Square Nut | Steel | Plain | 1/2-13 | reg square nut stl | 1,177 |
|
IRF | NJ | Square Nut | Steel | Plain | 1/2-13 | reg square nut stl | 5177 |
|
IRF | NJ | Square Nut | Steel | Plain | 1/2-13 | reg square nut stl | 5177 |
|
SeattleNB | WA | Square Nut | Brass | Plain | 1/2-13 | square nut | 307 |
|
Lippin | CA | Square Nut | Steel | Zinc/Clear | 1/2-13 | 1/2-13 square nut zinc | 1950 |
|
MESAFAST | CA | Square Nut | Steel | Plain | 1/2-13 square nut steel plain | 125.0 |
| |
SRF | AL | Square Nut | Grade 5 | Plain | 1/2-13 | heavy square nut | - |
|
BoltCraft | NE | Square Nut | Steel | Plain | 1/2-13 x 750 | 1/2-13 square nut plain 750/ctn | inquire |
|
BoltCraft | NE | Square Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2-13 | 1/2-13 square nut gr 18.8 stainless steel | inquire |
|
Endries | WI | Square Nut | Steel | Plain | 1/2-13 | 1/2-13 heavy square nut plain | 400 |
|
NutsBolts | NE | Square Nut | Steel | Zinc/Clear | 1/2-13 | 1/2-13 square nut zp | 664 |
|
Cal Fastenrs | CA | Square Nut | Steel | Galvanized | 1/2-13 | square nut square nut | 992 |
|
Standard | MA | Square Nut | 316, 317, A4 Stainless | Plain | 1/2-13 | 1/2-13 square nut 316 stainless steel b18.2.2 | 16640 |
|
Standard | MA | Square Nut | Brass | Plain | 1/2-13 | 1/2-13 square nut brass b18.2.2 | 8350 |
|
Future Fastener | TX | Square Nut | Steel | Zinc/Clear | 1/2-13 | 1/2-13 square nut plt | 350 |
|
Future Fastener | TX | Square Nut | Steel | Black Oxide | 1/2-13 | 1/2-13 square nut blk | 350 |
|
OBRIEN | OH | Square Nut | Steel | Galvanized | 1/2-13 | square nut | 100 |
|
Delta | TX | Square Nut | Steel | Plain | 1/2-13 | fin square nut plain 1/2-13 | 1324 |
|
Delta | TX | Square Nut | Steel | Zinc/Clear | 1/2-13 | fin square nut zinc 1/2-13 | 440 |
|
Delta | TX | Square Nut | Steel | Galvanized | 1/2-13 | fin square nut stl hdg 1/2-13 | 250 |
|
Delta | TX | Square Nut | Steel | Plain | 1/2-13 | hvy square nut plain 1/2-13 | 295 |
|
THRDFAST | AL | Square Nut | Steel | Plain | 1/2-13 | square nut b18.2.2 | 46 |
|
SWACO | OH | Square Nut | Steel | Plain | 1/2-13 | 1/2-13 heavy square nut steel plain | 163 |
|
CNB | IL | Square Nut | Grade 2 | Plain | 1/2-13 | square nut, , | 863 |
|
CNB | IL | Square Nut | Grade 2 | Plain | 1/2-13 | heavy pattern square nut, , | 500 |
|
FMP | MA | Square Nut | Steel | Plain | 1/2-13 | square bolt nut | 65 |
|
FMP | MA | Square Nut | Steel | Zinc/Clear | 1/2-13 | square bolt nut | 580 |
|
WDMB | IA | Square Nut | Brass | Plain | 1/2-13 | nut sq brs (pl) 1/2-13 (W0X0) | 300 |
|
WDMB | IA | Square Nut | Grade 2 | Zinc/Clear | 1/2-13 | nut sq gr2 (zn) 1/2-13 | 750 |
|
BHAM | AL | Square Nut | Steel | Plain | 1/2-13 | 1/2-13 reg. square nuts b18.2.2 | 85 |
|
ASFCORP | MI | Square Nut | Grade 2 | Zinc/Clear | 1/2-13 | 1/2-13 hvy sq nut sae j995 gr 2 tri zn fe/zn 5an | 406 |
|
ZAL INDUS | CA | Square Nut | Steel | Galvanized | 1/2-13 | 1/2-13 square nut h.d.g. | 2,250 |
|
ZAL INDUS | CA | Square Nut | Steel | Plain | 1/2-13 | 1/2-13 heavy square nuts | 380 |
|
ZAL INDUS | CA | Square Nut | Steel | Zinc/Clear | 1/2-13 | 1/2-13 square nut pltd | 34 |
|
Komar | OH | Square Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2-13 regular square nut (13/16 x 7/16) 304 ss | 830 |
| |
FastWare | Sask | Square Nut | Steel | Zinc/Clear | 1/2-13 | nc square nut | 300 |
|
ASMC | IL | Square Nut | Grade 2 | Zinc/Clear | 1/2-13 | coarse gr2 regular square nut low carb zp | 631 |
|
ASMC | IL | Square Nut | Grade 2 | Plain | 1/2-13 | coarse gr2 regular square nut low carb | 191 |
|
ASMC | IL | Square Nut | Grade 2 | Galvanized | 1/2-13 | coarse gr2 regular square nut low carb hdg | 84 |
|
KBS | TN | Square Nut | Silicon Bronze | Plain | 1/2-13 | 1/2-13 regular squarenut sili brze b18.2.2 | 446 |
|
KBS | TN | Square Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2-13 | 1/2-13 regular squarenut s/s b18.2.2 | 1,182 |
|
KBS | TN | Square Nut | Brass | Plain | 1/2-13 | 1/2-13 regular squarenut brass b18.2.2 | 2,986 |
|
MAINSOURC | NH | Square Nut | Steel | Plain | 1/2-13 | square nut stl z/clr | 250 |
|
MAINSOURC | NH | Square Nut | Steel | Plain | 1/2-13 | square nut stl | 394 |
|
Kanebridge | IL | Square Nut | Steel | Galvanized | 1/2-13 | 1/2-13 regular square nut hot dipped galvanized | 7.500 |
|
Kanebridge | IL | Square Nut | Steel | Plain | 1/2-13 | 1/2-13 heavy square nut plain | 7.500 |
|
Kanebridge | IL | Square Nut | Steel | Zinc/Clear | 1/2-13 | 1/2-13 regular square nut zinc | 7.500 |
|
Liberty | IL | Square Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2-13 | regular square nut 18-8 s/s 18-8 s/s | 611 |
|
Liberty | IL | Square Nut | Steel | Zinc/Yellow | 1/2-13 | regular square nut & & | 166 |
|
HBBOLT | CA | Square Nut | Steel | Zinc/Clear | 1/2-13 | square nut | 1,650 |
|
IPC | VA | Square Nut | Steel | Zinc/Clear | 1/2-13 | 1/2-13 square nut steel zinc | 550 |
|
General F | MI | Square Nut | Grade 2 | Plain | 1/2-13 | 1/2-13 hvy sq nut gr 2 b18.2.2 | 1241 |
|
XL Screw | GA | Square Nut | Steel | Zinc/Clear | 1/2-13 | regular square nuts zp | 800 |
|
XL Screw | GA | Square Nut | Steel | Plain | 1/2-13 | regular square nuts | 800 |
|
Perigee | MI | Square Nut | Grade A | Plain | 1/2-13 x 13/16 x 7/16 | 1/2-13 x 13/16 x 7/16 regular square nut b18.2.2 | 92 |
|
ASMC | IL | Square Nut | Grade 5 | Plain | 1/2-13 | coarse gr5 regular square nut med carb | 171 |
|
Liberty | IL | Square Nut | Steel | Plain | 1/2-13 | regular square nut | 200 |
|
ASMC | IL | Square Nut | Grade 8 | Plain | 1/2-13 | coarse gr8 regular square nut med carb b18.2.2 | 21 |
|
Hayes | CA | Square Nut | Steel | Plain | 1/2-13 | 1/2-13 square nut pln | 107 |
|
Alma Bolt | MI | Square Nut | Steel | Plain | 1/2-13 | 1/2-13 plain finish square nut b18.2.2 | 2467 |
|
Fastener | OH | Square Nut | Grade 2 | Zinc/Clear | 1/2-13 | square nut 1/2-13 gr2 zinc plated | 500 |
|
NAPPCO | TX | Square Nut | Steel | Zinc/Clear | 1/2-13 | square nut steel zinc 1/2-13 | 502 |
|
OSSCO | RI | Square Nut | Steel | Zinc/Clear | 1/2-13 | 1/2-13 square nut plated b18.2.2 | 97 |
|
Valley Nu | WA | Square Nut | Steel | Plain | 1/2-13 | nc square nut pl | 297 |
|
Fastener | OH | Square Nut | 316, 317, A4 Stainless | Plain | square nut 1/2-13 316 ss | 100 |
| |
Hodell | OH | Square Nut | Steel | Galvanized | 1/2-13 | 1/2-13 square nut hdg | 305 |
|
JET FITTING | CA | Square Nut | Steel | Plain | 1/2-13 | 1/2-13 heavy square nut steel plain 50NQHP b18.2.2 | 163 |
|
Hodell | OH | Square Nut | Steel | Galvanized | 1/2-13 | 1/2-13 heavy square nut hot dipped galv. () | 71 |
|
Standard | MA | Square Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2-13 | 1/2-13 square nut 18-8 s/s steel | 5000 |
|
Hodell | OH | Square Nut | Steel | Galvanized | 1/2-13 | 1/2-13 square nut mech galv | 185 |
|
Hodell | OH | Square Nut | Steel | Zinc/Clear | 1/2-13 | 1/2-13 reg square nut zinc | 400 |
|
Hodell | OH | Square Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2-13 | 1/2-13 square nut 18-8 304 | 50 |
|
THRDFAST | MS | Square Nut | Steel | Galvanized | 1/2-13 | square nut hdg b18.2.2 | 25 |
|
THRDFAST | AL | Square Nut | Steel | Plain | 1/2-13 | square nut b18.2.2 | 10 |
|
Hodell | OH | Square Nut | Steel | Zinc/Clear | 1/2-13 | 1/2-13 regular square n ut zinc | 400 |
|
Olander | CA | Square Nut | Steel | Zinc/Clear | 1/2-13 sq nut stl zn non-rohs | 115 |
| |
Hodell | OH | Square Nut | Steel | Plain | 1/2-13 | 1/2-13 reg square nut pln | 1400 |
|
Hodell | OH | Square Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2-13 | 1/2-13 square nut 18-8 304 | 50 |
|
Valley Nu | WA | Square Nut | Steel | Galvanized | 1/2-13 | nc square nut hdg | 1031 |
|
Hodell | OH | Square Nut | Steel | Galvanized | 1/2-13 | 1/2-13 square nut h.d.galv 50cnsqg () | 5 |
|
Alma Bolt | MI | Square Nut | Steel | Zinc/Clear | 1/2-13 | square nut | 4081 |
|
Hodell | OH | Square Nut | Steel | Galvanized | 1/2-13 | 1/2-13 square nut mech galv | 185 |
|
Hodell | OH | Square Nut | Steel | Galvanized | 1/2-13 | 1/2-13 square nut hdg () | 5 |
|
Fastener | OH | Square Nut | Grade 2 | Plain | 1/2-13 | square nut 1/2-13 gr2 steel plain | 350 |
|
Jackson | MS | Square Nut | Steel | Zinc/Clear | 1/2 | nc square nut | 906 |
|
B & K FAST | PA | Square Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2-13 11/16 | 1/2-13 square nuts stainless 11/16 thk b18.2.2 | 4325 |
|
QFC | TX | Square Nut | Steel | Zinc/Clear | 1/2 | 1/2nc bzp square nut b18.2.2 | 354 |
|
QFC | TX | Square Nut | Steel | Zinc/Clear | 1/2 | 1/2nc bzp square nut b18.2.2 | 800 |
|
QFC | TX | Square Nut | Steel | Zinc/Clear | 1/2 | 1/2nc bzp square nut b18.2.2 | 155 |
|
QFC | TX | Square Nut | Steel | Zinc/Clear | 1/2 | 1/2nc bzp square nut b18.2.2 | 17 |
|
MastBolt | OH | Square Nut | Grade 5 | Plain | 1/2 x 2 1/2 | button hd oval neck with 1-1/4 thread w/square nuts |
| |
Jackson | MS | Square Nut | Steel | Galvanized | 1/2 | nc square nut hdg | 1522 |
|
Jackson | MS | Square Nut | Steel | Plain | 1/2 | nc square nut | 455 |
|
MastBolt | OH | Square Nut | Grade 5 | Plain | 1/2 x 2 1/2 | button hd oval neck with 1-1/4 thread w/square nuts |
| |
XL Screw | GA | Square Nut | Steel | Galvanized | 1/2-13 .018 o.s. | regular square nuts hdg | 800 |
|
General F | MI | Square Nut | Steel | Zinc/Clear | 1/2 | 1/2 sq nut w/handle clr zn gm4345m b18.2.2 | 50850 |
|
Trademarks identified with products listed on this website are the property of their respective owners, not FastenersClearingHouse.com.